0586774 - ÚFE 2025 RIV US eng J - Článek v odborném periodiku
Pokorný, Jan - Aubrecht, Jan - Kamrádek, Michal - Švejkarová, Bára - Vařák, Petr - Grábner, Martin - Peterka, Pavel
Depressed-cladding thulium-doped fiber for applications below 1800 nm.
Optics Express. Roč. 32, č. 10 (2024), s. 17966-17976. ISSN 1094-4087
Grant CEP: GA MŠMT(CZ) EH22_008/0004573
Institucionální podpora: RVO:67985882
Klíčová slova: short wavelength operation * amplifiers * emission * losses * laser * gain
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 3.2, rok: 2023 ; AIS: 0.723, rok: 2023
Způsob publikování: Open access
Web výsledku:
https://opg.optica.org/directpdfaccess/635f4a9a-1ef1-44c4-889807f3c4621d85_549524/oe-32-10-17966.pdf?da=1&id=549524&seq=0&mobile=no

DOI: https://doi.org/10.1364/OE.523168

We present a thuliumdoped silica fiber, featuring a depressed cladding, for applications at wavelengths below 1800 nm. The depressed cladding is used as a distributed filter suppressing amplified spontaneous emission at longer wavelengths, which helps promote emission at shorter wavelengths. We describe the fiber design process that was carried out by using a combination of numerical methods. The fiber was prepared in-house by a combination of the standard modified chemical vapor deposition method and nanoparticle doping. We demonstrate the effectiveness and tunability of ASE filtering, which is influenced by fiber bend radius and its variation. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Trvalý link: https://hdl.handle.net/11104/0360445